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A glass hasn't a true melting point. The softening point of Pyrex glass is between 800 °C and 850 °C.
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∙ 12y ago
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What is another name for a test tube?
another name for test tube is culture tube or sample tube
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
How could you test if argon is a non metal?
You first get a bowl of tap water, get a test tube with the argon in it. Take out the cork screw out of the test tube. Get a splint put it over the test tube when you open it and it it pops that means it is a metal
Is test tube baby immoral?
It is subjective as to whether a test tube baby is immoral or not. Some religions feel that it is.
If a sample contained 1 gram of pure substance A and another test tube contained 4 grams of pure substance A how would the melting point differ and how would the experiment differ?
The melting point is independent of the quantity. What changes is the amount of heat which must be supplied.
In heating chemicals in a test tube where should the mouth of the test tube point?
Away from you....... BULOK eat my dust
Why is it important to pack the sublimate uniformly?
The melting point sample capillary tube has to be packed efficiently and uniformly, because air spaces can cause nonuniform heat transfer within the tube. This can inconsistency, with some parts of the sample melting before others, which results in poor reproducibility. A uniformly packed tube will melt consistently and evenly to give a sharp, reproducible melting point determination.
What steps can you take to determine the melting point of a substance that sublimes before it melts?
In such cases the melting point determination must be performed in a sealed capillary tube to avoid loss of sample. This can be achieved by heating the open end of the capillary tube, and with tweezers forcing it shut.
Why do you use a new capillary tube for melting point determination each time?
It is not easy to be cleaned inside.
Why can't we reuse a capillary tube to determine the melting point for a second time?
ur muff cabbage
Never point the test tube towards your partner?
You can cause damage to them!
What is a thiele tube is used to?
to determine the melting point of a sample. the particular shape of the tube allows the liquid (oil) to circulate evenly through convection currents.
Whats the best method of heating fluid in a test tube is to point the flam directly at the bottom of the tube?
FALSE!!
What would a glass test tube cost?
That depends on the size, the type of glass, and if the test tube has an special features - such as threading at the top to allow a screw cap to be screwed on... With that said, a typical price for the test tubes you usually see is around $1/each for a 14 ml Pyrex test tube. I've seen really cheap ones for less than half that when bought in bulk and some specialty ones that were over $5/each.
Is neon a boiling point or melting point?
Neon is defined as: a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amount. Neon is neither a melting or boiling point.
Why do not point the test tube to anyone nor look into the test tube while it is being heated?
Because if the experiment being conducted in the test tube is explosive or very reactive then it can spit out stuff and this can be dangerous to your eyes or skin. so by pointing the test tube away then you won't harm anyone if anything spits out
